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Table 1 Characteristics of study population of women undergoing IUI cycles according to TSH level (mIU/l)a

From: The impact of thyroid-stimulating hormone levels in euthyroid women on intrauterine insemination outcome

Variables TSH 0.40–2.49 mIU/l TSH 2.50–4.99 mIU/l p-values
n = 233 n = 69)
TSH level (mIU/l) 1.44 ± 0.53 3.29 ± 0.63 <  0.001
Age
 Female age (y) 29.3 ± 4.4 29.1 ± 4.4 0.76
 Partner age (y) 32.8 ± 4.3 33.3 ± 4.2 0.31
Medical history
Duration of marriage (y) 4 (3–7) 4 (3–6) 0.98
Duration of infertility (y) 3 (2–4.5) 3 (2–5) 0.39
Parity    0.92
 0 197 (84.5%) 59 (85.6%)  
  ≥ 1 36 (15.5%) 10 (14.5%)  
Lifestyle factors
BMI (kg/m2) 25.1 ± 3.9 25.7 ± 4.0 0.36
No. Smokers (%) 204 (87.6%) 64 (92.8%) 0.23
29 (12.4%) 5 (7.2%)   
Ovarian reserve
Day 3 FSH (U/l) 6.2 ± 2.1 6.7 ± 1.9 0.36
Day 3 E2 56.1 ± 37 53.5 ± 30 0.54
AFC 14 (8–20) 13 (9–20) 0.82
Sperm quality
Sperm conc. (×106) 47.5 (30–62.5) 41 (26–58) 0.11
Sperm motility 50 (45–53.5) 50 (45–52) 0.13
TPMS (×106) 42.3 (24–67.3) 31.2 (18.2–59.2) 0.06
Sperm morphology 2(1–3) 3(2–3) 0.32
  1. aAt first cycle according to TSH level
  2. Data shown as means ± standard deviations or median (IQR)